Research Article
Preparation of Poly(Hydroxamic Acid) for Separation of Zr/Y, Sr System
Table 3
FTIR spectra of PAAm, PHA, and metal loaded PHA.
| Original groups | Absorption bands of original groups (cm−1) | Experimental absorption bands (cm−1) | PAAm | PHA | PHA-M |
| Amide: | | | | | Free > NH stretching (amide II) | 3500, 3400 | 3401 | 3444 | 3449 | > C=O stretching (amide I) | 1650 | 1649 | 1670 | 1649 |
| Aliphatic: | | | | | –CH2 stretching | 2926–2853 | 2998, 2851 | | 2919 | –CH2 bending | 1485–1445 | 1400 | | 1418 | –CH3 bending | 1470–1430 | | | |
| Hydroxyl: | | | | | Free OH stretching | 3650–3590 | | | | Bonded OH | 3400–3200 | | 3200 | 3449 |
| Amine: | | | | | C–N stretching | 1410 | 1400 | 1400 | 1416 | NH stretching | 3000–2700 | | | |
| Chelate compounds | 3200–2440 | | | 2919 | Metal–O bond | <1000 | | | 775 |
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